Radon exhaust vent cap



FIG. 1 is a side elevation view of a radon exhaust vent cap, showing my new design, the opposite side being a mirror image of that shown;

FIG. 2 is an end elevation view thereof, the opposite end being a mirror image of that shown;

FIG. 3 is a bottom plan view thereof. 

The ornamental design for a radon exhaust vent cap, as shown and described. 